I've read all the "websites" and researched raw and barf diets.. but most of their articles are basically blogs with sensationalized ideas with no real research based evidence to back it up. There are groups that believe humans should eat a raw plant based diet, but research shows we can achieve our nutritional requirements many different ways.
Well I can't pretend to have gone over the relevant research as well as I should have, but- as kibble is based on meats, and not a few chemicals/preservatives, and since comparing dogs to humans is not really sensible since we're very different evolution-wise, I don't correlate between humans being's need for cooked meat and a dog's...
On another not... merrick foods made my dog incredibly ill. Actually any grain free food made him sick. I think its because they rely on other binders like potatoes or beans or peas. He is on a limited ingredient lamb and rice kibble and that works for us. I supplement cooked meats and he tolerates that. He won't touch any raw meat except beef which he is allergic to.
I like the idea behind the raw diet but it is definitely not for all dogs.
And cats and dogs can pick up some parasites from raw food. While their gut does kill a lot there are things they can get like trichinosis which luckily is usually a one time infection and they can build immunity.
Merrick received top marks in "Thedogadvisor.com" for its ingredients... yes, the transition from a cheaper brand caused a few soft stools initially but that quickly changed.
Another interesting thing to note, which I think speaks volumes FOR raw feeding- "cold turkey" shift from kibble to raw food requires zero preparation or taking gradual steps- has zero digestion issues, stools remain perfect etc- their body respond great to this shift.
Anywhoo, dogs are individuals at the end of the day, no one thing fits all accounts.
The parasites argument, I tend to disagree with- the specific manufacturer we work here is supervised by the ministry of agriculture and veterinary authorities constantly... you receive the food frozen... I feel very safe about it, and have been using it for a year now, along with Merrick, to try and provide "the best of both worlds". If you make sure to bring in meat from reliable sources, parasites shouldn't be a concern.